PLATE 10. 

 Pectinatella m.agnifica Leidy. 



Fig. I. Enlarged view of one polypide situated at the end of a lobe. 

 (Norway, Me.) The full adult growth of the terminal tentacles is not yet 

 attained. They become about one-third longer in the adult. A ", cavity 

 of the coenoecial lobe ; D, common ectocyst ; E, endocyst of the coenoecium 

 and polypide ; J, hepatic folds ; M ', lophophoric retractors ; M ", brachial 

 retractors ; N, anterior retentors ; N ' posterior retentors. 



Pigs. 2, 3, 4. The upper and lower side, and profile of the statoblast. 

 W ', horny sheath ; W ", annular sheath ; W '", spines. 



